Harish Butani created HIVE-5784:
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Summary: Group By Operator doesn't carry forward table aliases in
its RowResolver
Key: HIVE-5784
URL: https://issues.apache.org/jira/browse/HIVE-5784
Project: Hive
Issue Type: Bug
Components: Query Processor
Reporter: Harish Butani
Assignee: Harish Butani
The following queries fails:
{code}
select b.key, count(*) from src b group by key
select key, count(*) from src b group by b.key
{code}
with a SemanticException; the select expression b.key (key in the 2nd query)
are not resolved by the GBy RowResolver.
This is because the GBy RowResolver only supports resolving based on an
AST.toStringTree match. Underlying issue is that a RowResolver doesn't allow
multiple mappings to the same ColumnInfo.
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